Summary :
Our collaborative research aims at preparing the operation of the next generation ultra-high-energy cosmic ray (UHECR) telescope, which will observe from space the fluorescence light of the UHECR-induced atmospheric showers. The collaboration involves hardware development and calibration, in the context of two pathfinder experiments (the EUSO-Balloon mission, led by France, and the EUSO-TA initiative, led by Japan), as well as theoretical work to understand UHECR origin and propagation across the universe.

French member :
E. Parizot, J-N. Albert, D. Allard, P. Barillon, S. Blin, J-N. Capdevielle, S. Dagoret, C. de la Taille, P. Gorodetzky, C. Lachaud, G. Prévot,

Japanese member :
F. Junpei, K. Fumiyosho, I. Hirokazu, S. Hiroyuki, F. Masaki, I. Naoya, , S. Naoto, N. Shigehiro, O. Shoichi, , E. Toshikazu, A. Yasuo, K. Yoshimasa, K. Yoshiya

References:
• Anisotropy expectations for ultra-high-energy cosmic rays with future high statistics experiments', Rouillé d'Orfeuil, B., Allard, D., Lachaud, C., Parizot, E., Blaksley, C., and Nagataki S., A&A (2014) (in press) [astro-ph arXiv:1401.1119]
• The JEM-EUSO Mission: Contributions to the ICRC 2013 [Collection of many publications]
The JEM-EUSO Collaboration
Conference Proceedings: 33rd International Cosmic Ray Conference, ICRC 2013 
[arXiv:1307.7071]
• A balloon-borne prototype for demonstrating the concept of JEM-EUSO
P. von Ballmoos, et al., for the JEM-EUSO Collaboration,
 Advances in Space Research, 53, 1544 (2014)
• The JEM-EUSO mission, T. Ebisuzaki, Gustavo Medina-Tanco, Andrea Santangelo, for the JEM-EUSO Collaboration,
 Advances in Space Research, 53, 1499 (2014)
• Calibration and testing of a prototype of the JEM-EUSO telescope on Telescope Array site
M. Casolino for the JEM-EUSO Collaboration, T. Fujii, D. Ikeda, Y. Tameda, T. Shibata, H. Sagawa, M. Fukushima et al. for the JEM-EUSO Collaboration
 EPJ Web of Conferences 53, 09005 (2013)
• EUSO-Balloon: a pathfinder for detecting UHECR’s from the edge of space
P. von Ballmoos, et al., 
EPJ Web of Conferences 53, 09003 (2013)
• Calibration of the JEM-EUSO detector
N. Sakaki, J. Adams, M. Christl, P. Gorodetzky and L. Wiencke for the JEM-EUSO Collaboration, 
EPJ Web of Conferences 53, 09004 (2013)
• An Evaluation of the Exposure in Nadir Observation of the JEM-EUSO Mission
The JEM-EUSO Collaboration 
Astroparticle Physics 44, 76-90 (2013) - arXiv:1305.2478

website :
Main JEM-EUSO web site: http://jemeuso.riken.jp
Main EUSO-Balloon web site: http://euso-balloon.lal.in2p3.fr

Summary:
Project goals are :

1. to devise optimized strategies for detection and characterization of the CMB B-mode polarization signals from the ground and satellite platforms
   ii. to contribute to the development of the satellite mission concepts: CORE/PRISM and LiTEBIRD
   iii. to contribute to the development of the ground based observational programs: POLARBEAR, POLARBEAR-2 and SIMONS ARRAY and later the so-called STAGE-IV experiments
   iv. to analyse actual data sets as collected by the POLARBEAR experiments.

French members :
R. Stompor, M. Bucher, J. Delabrouille, J. Errard, K.M. Ganga, A. Karakci

Japanese members :
M. Hazumi, Y. Chinone, M. Hasagawa, N. Katayama, H. Nishino

References :
POLARBEAR Collaboration, "Evidence for Gravitational Lensing of the Cosmic Microwave Background Polarization from Cross-Correlation with the Cosmic Infrared Background", Physical Review Letters, Volume 112, Issue 13, id.131302, 2014
POLARBEAR Collaboration, "Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum with the POLARBEAR Experiment", Physical Review Letters, Volume 113, Issue 2, id.021301, 2014
COrE/PRISM Collaboration, "PRISM (Polarized Radiation Imaging and Spectroscopy Mission): an extended white paper", Journal of Cosmology and Astroparticle Physics, Issue 02, article id. 006, 2014
LiTEBIRD Collaboration, "Mission Design of LiteBIRD", Journal of Low Temperature Physics, Volume 176, Issue 5-6, pp. 733-740, 2014

website :
POLARBEAR experiment: http://bolo.berkeley.edu/polarbear/
LiTEBIRD mission: http://litebird.jp/
CORE/PRISM mission: http://www.prism-mission.org